| The Basics > Specifying a Data Source > What is Unbound Mode? |
If you are working with a database API that supports multiple-row fetches (such as ODBC), or are converting applications that use unbound DBList controls, then the row-based unbound mode should be used. Although unbound mode is the most difficult data access mode to implement, it tends to be more efficient than application mode, since fewer events need to be fired.
DataMode setting 2 - Unbound Extended is the preferred method. Setting 1 - Unbound is a remnant of the original DBGrid control and is included for backward compatibility.
For more information on using True DBList in unbound mode, see Unbound Mode.